// This is called with the results from from FB.getLoginStatus().
function statusChangeCallback(response) {
	console.log('statusChangeCallback');
	console.log(response);
	// The response object is returned with a status field that lets the
	// app know the current login status of the person.
	// Full docs on the response object can be found in the documentation
	// for FB.getLoginStatus().
	if (response.status === 'connected') {
		// Logged into your app and Facebook.
		afterLogin();
	} else if (response.status === 'not_authorized') {
		// The person is logged into Facebook, but not your app.
		document.getElementById('status').innerHTML = 'Please log '
				+ 'into this app.';
	} else {
		// The person is not logged into Facebook, so we're not sure if
		// they are logged into this app or not.
		document.getElementById('status').innerHTML = 'Please log '
				+ 'into Facebook.';
	}
}

// This function is called when someone finishes with the Login
// Button.  See the onlogin handler attached to it in the sample
// code below.
function checkLoginState() {
	FB.getLoginStatus(function(response) {
		statusChangeCallback(response);
	});
	
}

window.fbAsyncInit = function() {
	FB.init({
		appId      : '1435764669997973',//phonemaptest
//		appId : '157906274356332',//phonemap
		status : true, // check login status
		cookie : true, // enable cookies to allow the server to access the session
		xfbml : true,
		version : 'v2.0' // use version 2.0
	// parse XFBML
	});

	// Now that we've initialized the JavaScript SDK, we call 
	// FB.getLoginStatus().  This function gets the state of the
	// person visiting this page and can return one of three states to
	// the callback you provide.  They can be:
	//
	// 1. Logged into your app ('connected')
	// 2. Logged into Facebook, but not your app ('not_authorized')
	// 3. Not logged into Facebook and can't tell if they are logged into
	//    your app or not.
	//
	// These three cases are handled in the callback function.

	FB.getLoginStatus(function(response) {
		statusChangeCallback(response);
	});
	
	

};

// Load the SDK asynchronously
(function(d, s, id) {
	var js, fjs = d.getElementsByTagName(s)[0];
	if (d.getElementById(id))
		return;
	js = d.createElement(s);
	js.id = id;
	js.src = "//connect.facebook.net/en_US/sdk.js";
	fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));

// Here we run a very simple test of the Graph API after login is
// successful.  See statusChangeCallback() for when this call is made.
function testAPI() {
	console.log('Welcome!  Fetching your information.... ');
	FB.api('/me', function(response) {
		console.log('Successful login for: ' + response.name);
		document.getElementById('status').innerHTML = 'Thanks for logging in, '
				+ response.name + '!';
	});
}